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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/debug/trace_event_impl.h" | 5 #include "base/debug/trace_event_impl.h" |
| 6 | 6 |
| 7 #include <fcntl.h> | 7 #include <fcntl.h> |
| 8 | 8 |
| 9 #include "base/debug/trace_event.h" | 9 #include "base/debug/trace_event.h" |
| 10 #include "base/format_macros.h" | 10 #include "base/format_macros.h" |
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| 91 if (g_atrace_fd != -1) | 91 if (g_atrace_fd != -1) |
| 92 return; | 92 return; |
| 93 | 93 |
| 94 g_atrace_fd = open(kATraceMarkerFile, O_WRONLY); | 94 g_atrace_fd = open(kATraceMarkerFile, O_WRONLY); |
| 95 if (g_atrace_fd == -1) { | 95 if (g_atrace_fd == -1) { |
| 96 PLOG(WARNING) << "Couldn't open " << kATraceMarkerFile; | 96 PLOG(WARNING) << "Couldn't open " << kATraceMarkerFile; |
| 97 return; | 97 return; |
| 98 } | 98 } |
| 99 SetEnabled(CategoryFilter(CategoryFilter::kDefaultCategoryFilterString), | 99 SetEnabled(CategoryFilter(CategoryFilter::kDefaultCategoryFilterString), |
| 100 base::debug::TraceLog::RECORDING_MODE, | 100 base::debug::TraceLog::RECORDING_MODE, |
| 101 RECORD_CONTINUOUSLY); | 101 base::debug::TraceOptions( |
| 102 base::debug::TraceOptions::RECORD_CONTINUOUSLY)); |
| 102 } | 103 } |
| 103 | 104 |
| 104 void TraceLog::StopATrace() { | 105 void TraceLog::StopATrace() { |
| 105 if (g_atrace_fd == -1) | 106 if (g_atrace_fd == -1) |
| 106 return; | 107 return; |
| 107 | 108 |
| 108 close(g_atrace_fd); | 109 close(g_atrace_fd); |
| 109 g_atrace_fd = -1; | 110 g_atrace_fd = -1; |
| 110 | 111 |
| 111 // TraceLog::Flush() requires the current thread to have a message loop, but | 112 // TraceLog::Flush() requires the current thread to have a message loop, but |
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| 190 double now_in_seconds = now.ToInternalValue() / 1000000.0; | 191 double now_in_seconds = now.ToInternalValue() / 1000000.0; |
| 191 std::string marker = StringPrintf( | 192 std::string marker = StringPrintf( |
| 192 "trace_event_clock_sync: parent_ts=%f\n", now_in_seconds); | 193 "trace_event_clock_sync: parent_ts=%f\n", now_in_seconds); |
| 193 if (write(atrace_fd, marker.c_str(), marker.size()) == -1) | 194 if (write(atrace_fd, marker.c_str(), marker.size()) == -1) |
| 194 PLOG(WARNING) << "Couldn't write to " << kATraceMarkerFile; | 195 PLOG(WARNING) << "Couldn't write to " << kATraceMarkerFile; |
| 195 close(atrace_fd); | 196 close(atrace_fd); |
| 196 } | 197 } |
| 197 | 198 |
| 198 } // namespace debug | 199 } // namespace debug |
| 199 } // namespace base | 200 } // namespace base |
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